Friday, November 12, 2010

Deepavali at Rishi Valley - Eight legs & six legs

I always thought the spider was an insect. (Really, what did they teach her in school, you say?) Well, what did you think, huh...huh..go on tell me.

Its quite simple really, spiders have eight legs, insects have six. So spider not insect, ta-da!

So the spider is an arachnid. And guess what, so are scorpions and ticks, arachnids I mean.

And if you are wondering how this great insight dawned on me, it was because of our recent trip to Rishi Valley, some pictures I took of this gigantic "yettu kaal puchi", and then coming back and finding no mention of it in the book called Satpada, Our World of Insects!! I mean, its there in the title staring and screaming at me - SIX LEGS - and I still dont get it. (I can imagine Pranav, the wonder-insect-kid of MNS shaking his head in despair.)

Arachnid aesthetics first

These huge webs are those of the Giant wood spider, and I saw them for the first time in the Rishi Valley campus, and immediately the next day, up on Horsley Hills.


Oh yes look closely, there's the spider to the left and all those white lines...that's how big the web was!

The spider herself. The male is really tiny. Oh, to be a female spider!!

Trying my best to get the spider and the web together

Attempts at art photography. This web survived a really heavy downpour. You can see the water droplets glistening on the web


And this below is what we saw all over the grass, little dew patches I thought, but no, its a spider's web that has caught the morning dew. Check out the tunnel in the middle. its made by an arachnid called a tunnel spider, commonly, a type of wolf spider. I never did see this spider, but I believe its sitting there waiting in that tunnel/funnel, and will emerge as soon as its web vibrates!

If you click on the picture, you will see the funnel in the middle of the sheet-like web.


Insecta next

Lepidoptera - butterflies & moths

I saw -
Tawny costers
Blue Mormon - I wish could have photographed it
Common Mormon
Grass yellows
Plain tiger
White orange tip
And a Common Cerulean
Common Bush Brown
Hymenoptera - bees

The hard working honey bees, were hard at work making honey. I try to reduce the amount of honey I eat or buy these days, (its not making any difference to my waistline), they have a tough enough life it seems, without us eating up all their honey.

Apis dorsata at work
Heteroptera - bugs

Bugs feed on liquid mainly - so they suck, not chew, are quite a nuisance, and also smell foul!

We saw jewel bugs, water skaters, water scorpions and giant water bugs too. The water scorpions and giant water bugs we saw in the stagnant pools of water just off the RV campus, up in the rocks. The water scorpion is quite tiny, maybe an inch long, and I would have missed it, if Thyagu and Murugavel had not lifted it up on a stick and pointed it out. The "tail-like" appendage is actually a breathing tube, I discovered from the Satpada book!

Jewel bug - a shield-back bug, so attractive to look at, but pretty destructive to the plant, sucking out their sap.

Water skaters we saw in plenty at Madhinaiyanicheruvu, the freshwater body, about 20kms from RV.
Odonata - dragon and damselflies

There were so many, but they rarely sat still for me to take a good look, let alone photograph them. Dragonflies are my latest wonder-of-the-natural-world type creature. The glider is the insect with the longest migration....from India to Africa and back, if you please! 14,0000 kms in all.

A Ground Skimmer. Skimmers are found close to the ground and rarely fly more than 1m up. I saw several of these just hovering over the ground.

A Ditch jewel. Seen mainly near sewage ponds, so was this one lost?!

Orthoptera - grasshopper

Just click on the picture below, to appreciate all the colours and markings of the innocuous grasshopper. Take a look at those long legs, ready to put in a loooong jump!

Quite the agricultural pest these insects.

Cataloipus cymbifera is what I thought. But Pranav believes that "it is one of the Migratory Bird Locusts- most probably Schistocerca gregaria, a species that is very well known for its infamous gregariousness (as the name suggests). This is a grasshopper that trims foliage a little too enthusiastically, in the company of hundreds of individuals of its kind".


I made the mistake of asking him why he thought so and he gave me details about the size of the head, and markings on the pronotum, which all was too much for my middle-aged brain to process!! So, i shall just take his word for it. Thanks Pranav!

Coleoptera - beetles

Here's one longhorn beetle that Murugavel found, and placed lovingly on the tree to be photographed.

Longhorn beetle, with their extra long antennae


Hymenoptera - wasps

This looks like a mud dauber wasp of some sort...but all the references I came across show them with yellow legs....so what is this?

It was busy burrowing in the sand just outside the guest house, as the rain started. These wasps paralyse or tranquilise their victims, and then carry them off to their nest, where they are stored for their young ones!

Wasp

I also saw stick insects and mantises, paper wasps and I think even a hornets nest....but I do not have photographs of these.

All in all, a significant improvement in my knowledge of the insect world, in three days, dont you think?

9 comments:

  1. Lovely images. Some day I hope to visit India to see all of its wonders :)

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  2. Fabulous photographs.
    Hey, even I knew that spiders had 8 legs!! My teacher dinned that into our heads!

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  3. I hope your wish and dream comes true, Birdingdude.

    Kamini, good for you! I knew spiders=8 legs. That was not the issue. Just assumed it was a creepy crawly, hence insect...!!

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  4. I think your study is amazing, please keep up the good work. Well done,and great photos.

    Heather

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  5. I cant say lovely images but yes good camera used to click these pictures.

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  6. how wonderdul if this blog, thanks for telling me about this. what a lovely visit it must have been. that wasp, unlikely mud dauber. let me check what it is.

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  7. Hey the wasp is mostly Sphex, will you kill me if I ask you to add insect observations to inat he hehehe

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